If I were the team owner, I would be incredibly angry. Whether you call it a prank or hazing, it could be terrible for business. Every player on that team is a multi-million dollar investment, or has the potential to bring a multi-million dollar payoff. Just not good business, to let these guys risk injuring themselves outside of a game situation.
They are at risk enough, in games. To allow this is incomprehensible, to me, whether it be a superstar, third stringer, or whatever. And regardless of who was throwing who, it's just bad business from a purely economic standpoint. I also hate bullying of any sort, but have not looked at the video, and don't claim this was or wasn't in good fun. That matters little. The financial risks to all involved, and other teammates, coaches, owners, this is just insanity.
ETA: and at risk in practice, of course.